Vulnerability · Published Mar 20, 2026 · Assigned by GitHub_M

CVE-2026-33039AVideo vulnerable to unauthenticated SSRF via HTTP redirect bypass in LiveLinks proxy

High 8.6

In plain English

A high-severity server-side request forgery in AVideo from WWBN. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).

Severity (CVSS 3.1)8.6High

Exploit odds (30 days)0.5%top 59.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

WWBN AVideo is an open source video platform. In versions 25.0 and below, the plugin/LiveLinks/proxy.php endpoint validates user-supplied URLs against internal/private networks using isSSRFSafeURL(), but only checks the initial URL. When the initial URL responds with an HTTP redirect (Location header), the redirect target is fetched via fakeBrowser() without re-validation, allowing an attacker to reach internal services (cloud metadata, RFC1918 addresses) through an attacker-controlled redirect. This issue is fixed in version 26.0.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	wwbn/avideo	no fix listed	GHSA-9x67-f2v7-63rw

Affected products (as reported)

Vendor	Product	Versions
WWBN	AVideo	< 26.0

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-9x67-f2v7-63rw x_refsource_CONFIRM
https://github.com/WWBN/AVideo/commit/0e56382921fc71e64829cd1ec35f04e338c70917 x_refsource_MISC